Coric, Mayer, Almagro advance to 2nd round at Estoril Open

Coric broke Arnaboldi's serve four times to win his opening match at the clay-court tournament. The 40th-ranked Croat will face either Benjamin Becker of Germany or Rogerio Dutra Silva of Brazil, who play on Tuesday.

Seventh-seeded Leonardo Mayer of Argentina eased to a 6-1, 6-4 win over Portuguese wild card Pedro Sousa, setting up a match against either Paolo Lorenzi of Italy or Swedish qualifier Elias Ymer.